Street-sweeping machine.



H. R. HARN.

STREET SWEEPING MAGHINB. APPLICATION NLBD uns, 190s.

Patente. Mar. 9m

H R. HAHN.

STREET SWEEPING MACHINE.

APPLICATION FILED Mug, 1908.

Panama may. 29, 19m.

' 4 SHEETS-SHEET 2.

H. R. HAHN. STREET SWEBJING MACHINE.

AEPLIOATIN FILED MAYS, 1908. 1

. Patented Mar. 29, 1910.

- 4 SHEETS-SHEET 3.

RRHARN.

STREET SWBEPING MACHINE APPLIOATIO ILBD MAYQ, 1908.

Pazented Mar. 29, 1910.

4 SHEETS-SHEET 4.

construction of the suidkinachine.

UNEH

HELEN, GF?

Epeelcaton of Letters e'l may 9, i863. Eel-iai We. ,9.

.En/tentent 29, .119103.

of the Uniteti. States of America., et the city anti .con 'ty of." Denver of Colorful@ lieve ini'enteti e new i EJ' folio-Wing; is u. Specification.

' to impr vements 1n i vention is to provitle i7 diameter, which is adept ving.. or for the Sweeping; of Y been previously f i to this enel, the 'invention mneliine coinprising o wheeled the of which is udjustobly a upon which mounted powertlriven endless Chains, to, wl.iicl1 soeur-eti rows of bri1slies,`reeep- 'Entries being provided to receive the course or heur/jy sive, :incl also the lino or dust. el .Lt nien latter is drawn up through e i fen and discharge@ ougli e. piu?, litw of fabric tu'befs to the inst receiving receptacle, other M irte ot 'the machine being' se inclosed. nig; to prei/'ent the esc-.ipe of dust; ou te permit of the passage of air up through the brusl'ieu to the fen.J 'when the Saune is in operation.

The invention further consists in the im 'Figure Lis :i side elevation ot' the iinproved street. Sweeping machine. Fig. E2, ir ai vertical, longitudinal, sectional View thereo'i F 3, is e horizontal, sectional View tl'rrougii the upper part' of the machine on the line ot fan shaft, parts being broken away to 1@five clearer understanding of the Fig'. et, vis n side elevation, showing@ rear eudof the vehicle witlitlie brush sup'- portingg frame mijnvstloly` secured thereto. also the inclined sweepings apron, the up and of which is Wliiie the lower end is secure to 'tlm s supporting frame. Fig.

of thel portion of the machine l.. Fig, .tiy 1s an endv elevation Figs. 7 and 8, are seetional of the etw-@weeping lli/inchino, of

the brushes and all of portion of the hinged' te the volli/cle,v

are secured tl'iiinbles to lower ends of fabric in which which 'the upper p1 Ell tulies ure .seeureth through which the dust tr in the swee'oini discharges to the receptacles, And Fig'. 9./v is n. transverse sectional w. W Showing the .manner of Clamping the brushes to their supporting bars.

the nunler l. iuflit-.utes u. Suitable our or ie l'iiule. wifs preifei motel ung-le l'u end to torni :gi l` n ifl'i exteiul altrove the beams 3, but not so lim- :uw ilse ners -f'ertiu-.ul Imre (S, are Se.-

ifi-:fume 3. Sl'iort, distance forburrs fj. und these liurs extend liigV i (u1. the burn 4^, and are connected to eut-li i'ilucnu'url to t lmre y"l :it their upper in' infile imrS: '11. are in the forni of iguizir frame 79 the liorizontul 'lnugeu angie bers heini); it the .lower erige oit2 traine, und ,if jeftir inward, for u fui-neme to be priwutly euied. The vertiuel bruts e (fermented e short l. tij/Han ingle im' f ne i, but, having projo, ino i'iunoe ut` the top nul the tranne T und uupd metall platee; U unil l() respecti' j the pluto f) setting); town into the ier-unie. T nur? ,resting upon its flange, as elem-ly slimvn in Fig. The apertures in one plete :ire (lininetrieully opposite those in the other pluie, :met ure numerous's., will appear by .reference to Fig. 3, und in each :1 peri. ure a Short tliiinble lt, secured, those in the upper pluto projecting downward, while those in the lower plate project upuurtl, The tliimfles have circumferential gruorefi l), and fabrietube 1?, :ire secured at their ends to the oppositely arranged 'l'liimbies,orul ure secured thereto by securing a. voi-d n'. Jun@ the tube in suoli manner :is to embed the corri and tube iu. the grooves l2. The roooif the vehicle is arranged to forni.

in nii. tight chamber 14. above the upper plate 9, which formed with un opening' ut tliuzi i l views snowing portions of upper and lowery Re known that; il. Henny E., MARE., e

,ily constructed ,of

.leerring tu the accompanying clrziwing, v

The sides ofthe vehicle between-the lower plate 10 and the sidevbeams 3, are inclosed,

and inclined bottom plates 16 and 17 extend from below the plate 10 to a compartment 18, supported upon the beam 2, which 1s separated by a partition from 'a similar, though larger compartment'la The compartment 18 receives a removable dust receptacle 20, while the com artment 19 receives a sweepings receptac e 21. The compartments 18 and 19 are normally closed by doors 22, which are opened to allow the receptacles to be withdrawn :for .the purpose of emptying. An arched bracket 23, 1s' secured to the forward .end of the vehicle frame, to which the forward axle, carrying supporting wheels.24, is pvotally secured,I

and this bracket also supports -the drivers seat 25. lA substantially yoke-shaped axle 26, is secured to the under side of the rear ends of .the beams2. This axle comprises a horizontal'gmember, and upright arms 27, vupon the upper ends of'fwhich; the spindles are formed., 'Y These arms-.incline rearward, and' arebraedby' angle plates 28, whichare secured to .theI beams 2, .and by'v angle bars 29, which extendifrom the ends of the arms 27 tothe beams 3, An angle bar 30, bent to form a yoke of the width of the vehicle frame, is secured at itsends to the upright angle bars 5, and extends up at an an le to the bars 5. The horizontal member of the yoke 30, is connected ,to the uprights A5 and 6, by bars 31, which securely old the yoke in its rearwardly-inclined position. Angle .bars 32, running parallel with the inclined arms of the yoke 30, are secured at their lower ends to the beams 3, and their upperv endsiare bent at an angle and are secured to the inclined arms of the said yoke. The arms 32, and the yoke arms, form slideways 33, in which are placed flanged bearing blocks 34,' which support a yshaft 35upon which is rigidly mounted a pair of sprocket wheels 36. One end of the shaft 35, extends beyond the adjacent bearing block 34, and upon it'is rigidly secured a 'sprocket wheel 37.

To the blocks 34, are secured threaded' rods 38, which extend through apertures in the tops of the slideways. vNuts 39 on these rods, bear upon the top or end members of thev slideways, and -by turning these nuts,

the block 34 and shaft 35A are raised or,

Mlowered, as the case may'beAngle bars 40,

. bars 41, which are secured upon are pivotally secured at their upper ends to the bearing blocks 34,A and extend down at' an angle of substantially forty-tive degrees, and are secured at their lower ends to angle arallel bars 42, which connect the bars41 an extend beyond them. The upper ends ofthe bars `40, have short arms 43 secured to them,

'the bars uprights I45,

p49, are pivotal y "are mounte 53, are suita ly secured upon the ends ofthe 'esami which are parallel them form yokes 34,'and I 44, as clearly'shown in Figs. 4 and 5. Upright bars 45are securedb between Vthe parallel bars 42, near the ends of the said bars, and are held in an upright positionby braces 42. The upper ends of the uprights 45, are bent outward atJ right angles, and

angle irons 47, are secured to the under side'v of these bent ends, and to the uprights. Blocks 48, vare secured tofthe extended ends of the bars 42, in line with the angle irons 47. The angle 'irons and bent ends of the are provided with threaded apertures, vand the blocks 48, are provided with 4smooth apertures `in line with the apertures in the angle irons, andin these a tures are mounted threaded rods 49, w ich are held' atany desired vertical adjustment by nuts 50. U on the lower ends of the rods secured yokes 51, in which vcastenvsiheels 52'.- Stub axles bars 41, andf-upon the axlesjare mounted sprocket wheels 54, which are in line with the sprocket Wheels 36, on the shaft 35. AnV

endless'chain 55, connects each of the Wheels 36,'.and the two wheels 54 on the same side of. the machine, -and the twol chains are connected at intervals by channel bars 56, vto which brushes 57 vare secured, the material. composingv the brushes being lirst bent in the form of the letter U, and placed with their looped ends in the channel bar, and then 'l clamped therein by a second f ,and smaller channel bar 58, whlch is bolted to the first bar in the manner illustrated in Fig. 9. An inclined apron59 is hinged at its upper end to the rear end of the vehicle, preferably to the uprights 5. This apron is provided'withside laps 60, and the upper end of the apron is'ilush with the topof the compartment- 19, and in position to discharge into the receptacle 21, which is held 1n `the said compartment. An angle bar 61,

extends transversely across the bottom of' the apron near its lower end, and projects 'a' 'slight distance beyond each side of the same,

and turnv buckles 62, connect the extended ends'of the bar 61 with thet-Wo bars 40. A supplemental apron 63, is hinged to the lower endv of the main apron, and its freeend is curved downward and extends nearly to the ground. This curved end is supported upon rollers 64, and whatever the adjustment of the main apron may be, the hinge connection olf the supplemental apron will always permlt its rollers to rest upon the ground so that the supplemental apron will be in positionto catch the sweepings, which are then carried up the main apron and posited in thereceptacle 21.1y ,4

Bars 65, are `secured to the rear ends of with the bars, and with which straddle the blocks t are secured to them by bolts or pins 46, which are secured to the uprights and tg" nfs -'abrio tubes above the Same, is oonveye imo the dust l'eeepocle E20.

In opelaon, 'jhe Casier Whees jusi'ed "to Suit the hngt@ the orme d the apron is ooi'ifeslond by manipulating' C ehe turn. oueke he seew rods S8 are turned 'fo lower he neming slide Moeke 34C; "so be the under sides of the brursh emi'fyn e and the Sm'aoe o'f the brushes ille :1p1-on 5). The moto? is started, and

form o supporting frame upon which is seouod e comme or ohez' sulable coe/'etang 707 whlch completely mcoses the Iuushes,

power from the shaft 8? is communicoied to Shaft by ehem 85, eooneomg driven eprooke';

Sprocket whee 817 on so 37 on ehe' shof; 85., ibi-fou brush oal'ymg oh. ez-ete, t The chain "i9 eng-gogo on the smb j?, i YG; on the @he Immioaii on 'die ebow The ensoo of b the sp'ooie Wheei an. adjusmoe o vamos., the @Wer b'usheeg @gem and theme La exendng nearly to the ground on each side and. ai; kho rear. The covering extends up over be top o the yoke 30 and bars 3l, so to oover that 'pmt of the frame oithe wehiee on each side of the fm1 casjng,"chough boards may be used instead, if desfed, and the ee portions of the Tame bounded 'by the yoke. 3m bars 3la upghe 6, endbeame 3, are :liso ndosed in any sui'ebe way.

Air pipee 7L project o'n each side of the axial center of the *fan owing, and communcae with ibe h'ough he top of @ne cove?7 e shaft Y2, extends through die ian easing; and ai? es, and is jouz'mlef n beo'nge 73 mounted oo` the extends; from the sprocke; whee 37 on the Sheff, under the epl'ocie Awheel 18,'ov'e an ie Spiocket Wheel 80, to m around o sprocket wMee oo e shaft 532, which eri tens acme@ he meeho, obo-ve me inened olfactive xemov be aceompisheo L bfuslnes ih ehe chimes opem ug in abeaa';

secured to i emoke. 995 which imply f 511e velole. n nclined pe' 1 11 euate o Sho detance above e efiiue! bottom l?, and this platform is gewonde@ ejooeo; o one end upon hooks o2' inks jwhioh permit the platform to reeprooee, heothr end Vis attached to depending 'esolemj soppors1 93. An arm or mi? 94? is seemed mjzznt to eaeh end @Reform Qi, the opposite ends of theee ms me omed luto bands, which, ft upon eoeenmes 95, on the i. shaft 82, whereby, when he sxaz revolves, bnmlon oi 2. Woeeled v euce; :Lxweyo o the pla'fform is reo'ooateh and the dust the real T end o the Vemele; shdewoea'mg disohprging upon the pfomr; from the blocks adguseebly mounted m the sloewoysg; zo

. a shaft sulyoried in said blocks, and" sprocket wheels a scent the -ends of the" shaft; a, frame pivotally vsecured to said blocks; adjustable casters for supporting the, 'opposite and ,of the frame; 'sprocket wheels on the frame. in line with the sprocket wheels on the shsft'-encless 'chains connecting the ulined s rocet'wheels'and brushes secured tothe c ins; an 'inolined'apron in contact with 'the upwardly moving brushes,l and hngeqifst its upper end to the vehicle frame; ndjusig 'means connecting the lower end of 'the apron and the brush carrying frame; a

housing for the brushes; a receptacle .for receivin the heavy-sweepings from the apron; air in uction means for conveying the dust from the sweepin s; e rece tacle or receiving the dust, an. means or operating the brushes and air induction means.

2. In a streefl swee ing machine, the com- "nnatlon of a whee ed vehlcle, havingv asweepings receiver and a dust, receiver; shde- I .and arranged to travel ways on the end of 'the vehicle; a,- frame mounted at its upper end onl bloeks adjustable in the slideweyseu having' adjustable supporting casters at its lower emi; an end less series of brushes mounted on the frame nrellell with.' the street for a predetermine distance; 'en inclined apron hinged at its upper end to the vehicle, upon which the upwardly movin brushes travel; a supplemental apron- .hinge to the lower end of the first apron having rollers which rest upon the street; e housing for the brushes; a. rotary fan oommunicating with the housing and with'the dust re:l ceiver; and means for operating the brushes and fan.

In testmon whereof I affix my signature in presence o two witnesses,

' HARRY R. EARN.

Witnesses: C.' R. GARY, J. T. Boren. 

